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Date: Sat, 17 Jan 2004 14:09:00 -0000
From: "pbrook at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Message-ID: <20040117140859.13718.pbrook@gcc.gnu.org>
Reply-To: gcc-bugzilla@gcc.gnu.org
Subject: [Bug optimization/13718] New: Miscompilation of comparison of complex values
X-Bugzilla-Reason: CC
X-SW-Source: 2004-01/txt/msg01980.txt.bz2
List-Id: <gcc-bugs.sourceware.org>

Something seems to be going wrong with the handling of complex variables. From 
looking at the tree dumps it seems SRA might be the culprit. 
 
Testcase follows. 
 
void 
foo( _Complex float * a, _Complex float * b) 
{ 
  if (*a != *b) 
        abort (); 
} 
 
int main() 
{ 
  _Complex float v; 
  v = 0; 
  foo (&v, &v); 
}

-- 
           Summary: Miscompilation of comparison of complex values
           Product: gcc
           Version: tree-ssa
            Status: UNCONFIRMED
          Keywords: wrong-code
          Severity: critical
          Priority: P2
         Component: optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: pbrook at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: i686-pc-linux-gnu
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13718